package edu.friday.security.service;

import com.fasterxml.jackson.annotation.JsonFormat;
import edu.friday.Service.SysUserService;
import edu.friday.common.enums.UserStatus;
import edu.friday.common.exception.BaseException;
import edu.friday.model.SysUser;
import edu.friday.model.vo.SysUserVO;
import edu.friday.security.LoginUser;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    private static final Logger log = LoggerFactory.getLogger(UserDetailsServiceImpl.class);

    @Autowired
    private SysUserService sysUserService;

    //实现用户认证过程，需要考虑可能产生的异常情况
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        SysUser user = sysUserService.selectUserByName(username);
        if (user == null) {
            log.info("登录用户:{}", username);
            throw new UsernameNotFoundException("登录用户："+username+" 不存在");
        } else if (UserStatus.DELETED.getCode().equals(user.getDelFlag())) {
            log.info("登录用户:{}已经被删除", username);
            throw new BaseException("对不起，您的账号："+username+"已被删除");
        }else if (UserStatus.DISABLE.getCode().equals(user.getStatus())) {
            log.info("登录用户：{}已被停用", username);
            throw new BaseException("对不起，您的账号："+username+"已被删除");
        }
        return createLoginUser(user);
    }

    private UserDetails createLoginUser(SysUser user) {
        SysUserVO sysUserVO = new SysUserVO();
        BeanUtils.copyProperties(user, sysUserVO);
        return new LoginUser(sysUserVO,null);
    }
}
